Beware of a certain kind of humility suggested by the devil which is accompanied by great anxiety about the gravity of our sins. He disturbs souls in many ways by this means, until at last he stops them from receiving Holy Communion and from private prayer by doubts as to whether they are in a fit state for it, and such thoughts as: ‘Am I worthy of it? Am I in a good disposition? I am unfit to live in a religious community.’
Thus Christians are hindered from prayer, and when they communicate, the time during which they ought to be obtaining graces is spent in wondering whether they are well prepared or no.
Everything such a person says seems to them on the verge of evil, and all their actions appear fruitless, however good they are in themselves. They become discouraged and unable to do any good, for what is right in others they fancy is wrong in themselves.
When you are in this state, turn your mind so far as you can from your misery and fix it on the mercy of God, His love for us, and all that He endured for our sake.